\u0110\u1ec1 t\u1ed5ng tr\u00ean 10 c\u00f3 bao nhi\u00eau con hay d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con l\u00e0 c\u00e2u h\u1ecfi c\u1ee7a r\u1ea5t nhi\u1ec1u b\u1ea1n. K\u1ec3 c\u1ea3 nh\u1eefng b\u1ea1n \u0111ang ch\u01a1i v\u00e0 nh\u1eefng b\u1ea1n \u0111ang \u00f4m l\u00f4 \u0111\u1ec1, ph\u1ea7n l\u1edbn \u0111\u1ec1u kh\u00f4ng bi\u1ebft 2 b\u1ed9 s\u1ed1 n\u00e0y. \u0110\u00e2y l\u00e0 2 trong r\u1ea5t nhi\u1ec1u b\u1ed9 s\u1ed1 kh\u00e1 quen thu\u1ed9c c\u1ee7a c\u00e1c cao th\u1ee7 l\u00f4 \u0111\u1ec1. Khi \u00e1p d\u1ee5ng th\u00e0nh th\u1ee5c 2 b\u1ed9 s\u1ed1 n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 soi c\u1ea7u l\u00f4 \u0111\u1ec1 v\u00e0 b\u1eaft c\u1ea7u l\u00f4 \u0111\u1ec1 r\u1ea5t ch\u00ednh x\u00e1c. V\u1eady \u0111\u1ec1 t\u1ed5ng tr\u00ean 10, \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con, g\u1ed3m nh\u1eefng s\u1ed1 n\u00e0o? Ch\u00fang ta c\u00f9ng t\u00ecm hi\u1ec3u \u1edf b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/strong><\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 l\u00e0 m\u1ed9t d\u00e0n \u0111\u1ec1 trong c\u00e1c t\u1ed5ng trong l\u00f4 \u0111\u1ec1. C\u00f3 th\u1ec3 hi\u1ec3u r\u1ea5t \u0111\u01a1n gi\u1ea3n l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng 10. Ng\u01b0\u1ee3c l\u1ea1i d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u00e9 h\u01a1n 10.<\/p>\n \u1ede b\u00e0i vi\u1ebft tr\u01b0\u1edbc ta \u0111\u00e3 n\u00f3i v\u1ec1 c\u00e1c b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, tuy nhi\u00ean d\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 c\u00f3 \u0111\u00f4i ch\u00fat kh\u00e1c bi\u1ec7t. \u0110\u00f3 l\u00e0 vi\u1ec7c t\u00ednh t\u1ed5ng 2 ch\u1eef s\u1ed1 kh\u00f4ng t\u00ednh theo b\u00e0i 3 c\u00e2y (b\u00e0i c\u00e0o) m\u00e0 gi\u1eef nguy\u00ean t\u1ed5ng 2 ch\u1eef s\u1ed1 \u0111\u1ec3 x\u1ebfp c\u00e1c s\u1ed1 v\u00e0o d\u00e0n. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n ta c\u00f9ng x\u00e9t v\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n \u0110\u1ebfn \u0111\u00e2y ch\u1eafc c\u00e1c b\u1ea1n \u0111\u00e3 hi\u1ec3u v\u1ec1 c\u00e1ch ph\u00e2n lo\u1ea1i d\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 r\u1ed3i. V\u1eady t\u1ed5ng tr\u00ean 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng tr\u00ean 10 g\u1ed3m nh\u1eefng con g\u00ec v\u00e0 t\u1ed5ng d\u01b0\u1edbi 10 g\u1ed3m nh\u1eefng con n\u00e0o? M\u1eddi b\u1ea1n \u0111\u1ecdc ph\u1ea7n ti\u1ebfp theo c\u1ee7a b\u00e0i vi\u1ebft.<\/p>\n \u0110\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 nh\u01b0 ta v\u1eeba \u0111\u1ecbnh ngh\u0129a ph\u00eda tr\u00ean g\u1ed3m 55 con c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u00e9 h\u01a1n 10. D\u00e0n n\u00e0y g\u1ed3m c\u00e1c s\u1ed1 sau:<\/p>\n 00 \u2013 01 \u2013 02 \u2013 03 \u2013 04 \u2013 05 \u2013 06 \u2013 07 \u2013 08 \u2013 09<\/p>\n 10 \u2013 11 \u2013 12 \u2013 13 \u2013 14 \u2013 15 \u2013 16 \u2013 17 \u2013 18<\/p>\n 20 \u2013 21 \u2013 22 \u2013 23 \u2013 24 \u2013 25 \u2013 26 \u2013 27<\/p>\n 30 \u2013 31 \u2013 32 \u2013 33 \u2013 34 \u2013 35 \u2013 36<\/p>\n 40 \u2013 41 \u2013 42 \u2013 43 \u2013 44 \u2013 45<\/p>\n 50 \u2013 51 \u2013 52 \u2013 53 \u2013 54<\/p>\n 60 \u2013 61 \u2013 62 \u2013 63<\/p>\n 70 \u2013 71 \u2013 72<\/p>\n 80 \u2013 81<\/p>\n 90<\/p>\n Ch\u00fang ta c\u00f9ng t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n qua v\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n V\u00ed d\u1ee5:<\/p>\n Ta c\u00f3 s\u1ed1 42 c\u00f3 4+2=6<\/p>\n Ta c\u00f3 s\u1ed1 81 c\u00f3 8+1=9<\/p>\n Ti\u1ebfp theo ta c\u00f9ng xem t\u1ed5ng tr\u00ean 10 c\u00f3 bao nhi\u00eau con.<\/p>\n Do \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 c\u00f3 55 con n\u00ean 45 con s\u1ed1 c\u00f2n l\u1ea1i s\u1ebd n\u1eb1m \u1edf d\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10. D\u00e0n n\u00e0y g\u1ed3m c\u00e1c s\u1ed1 sau:<\/p>\n 19<\/p>\n 28 \u2013 29<\/p>\n 37 \u2013 38 \u2013 39<\/p>\n 46 \u2013 47 \u2013 48 \u2013 49<\/p>\n 55 \u2013 56 \u2013 57 \u2013 58 \u2013 59<\/p>\n 64 \u2013 65 \u2013 66 \u2013 67 \u2013 68 \u2013 69<\/p>\n 73 \u2013 74 \u2013 75 \u2013 76 \u2013 77 \u2013 78 \u2013 79<\/p>\n 82 \u2013 83 \u2013 84 \u2013 85 \u2013 86 \u2013 87 \u2013 88 \u2013 89<\/p>\n 91 \u2013 92 \u2013 93 \u2013 94 \u2013 95 \u2013 96 \u2013 97 \u2013 98 \u2013 99<\/p>\n Ch\u00fang ta c\u00f9ng t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n qua v\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n V\u00ed d\u1ee5:<\/p>\n Ta c\u00f3 s\u1ed1 49 c\u00f3 4+9 = 13<\/p>\n Ta c\u00f3 s\u1ed1 87 c\u00f3 8+7 = 15<\/p>\n Ngo\u00e0i ra m\u1ed9t s\u1ed1 n\u01a1i c\u00f2n kh\u00f4ng t\u00ednh nh\u1eefng s\u1ed1 thu\u1ed9c t\u1ed5ng 10 v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10. N\u1ebfu kh\u00f4ng t\u00ednh nh\u1eefng s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 10 ho\u1eb7c th\u00ec b\u1ed9 s\u1ed1 n\u00f3i tr\u00ean c\u00f3 nh\u1eefng s\u1ed1 sau:<\/p>\n 29<\/p>\n 38 \u2013 39<\/p>\n 47 \u2013 48 \u2013 49<\/p>\n 56 \u2013 57 \u2013 58 \u2013 59<\/p>\n 65 \u2013 66 \u2013 67 \u2013 68 \u2013 69<\/p>\n 74 \u2013 75 \u2013 76 \u2013 77 \u2013 78 \u2013 79<\/p>\n 83 \u2013 84 \u2013 85 \u2013 86 \u2013 87 \u2013 88 \u2013 89<\/p>\n 92 \u2013 93 \u2013 94 \u2013 95 \u2013 96 \u2013 97 \u2013 98 \u2013 99<\/p>\n Nh\u01b0 v\u1eady theo c\u00e1ch t\u00ednh n\u00e0y d\u00e0n \u0111\u1ec1 c\u1ee7a ch\u00fang ta ch\u1ec9 c\u00f2n 36 s\u1ed1 nh\u01b0 tr\u00ean.<\/p>\n V\u00ed d\u1ee5:<\/p>\n Ta c\u00f3 s\u1ed1 37 c\u00f3 3+7=10<\/p>\n Ta c\u00f3 s\u1ed1 46 c\u00f3 4+6=10<\/p>\n Qua b\u00e0i vi\u1ebft tr\u00ean ch\u1eafc ch\u1eafn c\u00e1c b\u1ea1n \u0111\u00e3 n\u1eafm r\u00f5 v\u1ec1 d\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10. Hi v\u1ecdng b\u00e0i vi\u1ebft s\u1ebd gi\u00fap \u00edch cho c\u00e1c b\u1ea1n khi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 online c\u0169ng nh\u01b0 \u0111\u00e1nh l\u00f4 \u0111\u1ec1 truy\u1ec1n th\u1ed1ng. Ch\u00fac c\u00e1c b\u1ea1n lu\u00f4n m\u1ea1nh kh\u1ecfe v\u00e0 g\u1eb7p nhi\u1ec1u may m\u1eafn. h\u1eb9n g\u1eb7p l\u1ea1i c\u00e1c b\u1ea1n \u1edf c\u00e1c b\u00e0i vi\u1ebft sau.<\/p>\n<\/div>\n<\/div>\n<\/article>\n <\/main><\/div>\n<\/div>\n\u0110\u1ec0 T\u1ed4NG TR\u00caN 10 V\u00c0 \u0110\u1ec0 T\u1ed4NG D\u01af\u1edaI 10<\/span><\/strong><\/h2>\n
V\u00ed d\u1ee5:<\/strong> <\/em><\/span><\/h3>\n
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\u0110\u1ec0 T\u1ed4NG D\u01af\u1edaI 10 BAO NHI\u00caU CON V\u00c0 G\u1ed2M NH\u1eeeNG S\u1ed0 N\u00c0O<\/strong><\/span><\/h3>\n
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\u0110\u1ec0 T\u1ed4NG TR\u00caN 10 C\u00d3 BAO NHI\u00caU CON V\u00c0 G\u1ed2M NH\u1eeeNG S\u1ed0 N\u00c0O<\/strong><\/span><\/h3>\n
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M\u1ed8T S\u1ed0 L\u01afU \u00dd<\/strong><\/span><\/h3>\n
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c\u1ea7u vip s\u1ed1 \u0111\u1eb9p mi\u1ec1n b\u1eafc<\/span><\/h2>\n<\/div>\n
c\u1ea7u si\u00eau vip b\u1ea1ch th\u1ee7 l\u00f4 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip b\u1ea1ch th\u1ee7 l\u00f4 2 nh\u00e1y mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip song th\u1ee7 l\u00f4 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip b\u1ea1ch th\u1ee7 l\u00f4 k\u00e9p mb<\/a><\/strong><\/span><\/div>\n
loto c\u1ea7u si\u00eau vip song th\u1ee7 l\u00f4 k\u00e9p mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip b\u1ea1ch th\u1ee7 \u0111\u1ec1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip song th\u1ee7 \u0111\u1ec1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n \u0111\u1ec1 4 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n \u0111\u1ec1 6 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n \u0111\u1ec1 8 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n \u0111\u1ec1 10 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 4 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u vip s\u1ed1 \u0111\u1eb9p mi\u1ec1n b\u1eafc<\/span><\/h2>\n<\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 6 s\u1ed1 mb<\/a><\/span><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 8 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 xi\u00ean 2 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 xi\u00ean 3 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 xi\u00ean 4 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip 3 c\u00e0ng mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n 3 c\u00e0ng 2 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip d\u00e0n l\u00f4 10 s\u1ed1 mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i mb<\/a><\/strong><\/span><\/div>\n
c\u1ea7u vip s\u1ed1 \u0111\u1eb9p mi\u1ec1n nam<\/span><\/h2>\n<\/div>\n
c\u1ea7u si\u00eau vip x\u1ec9u ch\u1ee7 mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip gi\u1ea3i \u0111\u1eb7c bi\u1ec7t mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip gi\u1ea3i 8 mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip bao l\u00f4 mn <\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip c\u1eb7p x\u1ec9u ch\u1ee7 mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip song th\u1ee7 l\u00f4 mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip \u0111\u1ea7u \u0111u\u00f4i \u0111\u1eb7c bi\u1ec7t mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip l\u00f4 3 s\u1ed1 mn<\/a><\/strong><\/span><\/div>\n
c\u1ea7u vip s\u1ed1 \u0111\u1eb9p mi\u1ec1n trung<\/span><\/h2>\n<\/div>\n
c\u1ea7u si\u00eau vip x\u1ec9u ch\u1ee7 mt<\/a><\/span><\/span><\/strong><\/span><\/div>\n
c\u1ea7u to si\u00eau vip gi\u1ea3i 8 mt<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip bao l\u00f4 mt<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip song th\u1ee7 l\u00f4 mt<\/a><\/strong><\/span><\/div>\n
c\u1ea7u si\u00eau vip \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 8 mt<\/a><\/strong><\/span><\/div>\n
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<\/div>\n\n\u0110\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 g\u00ec v\u00e0 g\u1ed3m nh\u1eefng s\u1ed1 n\u00e0o<\/h1>\n<\/header>\n
![\"de-tong-tren-10-va-tong-duoi-10\" \"d\u00e0n](\"\/wp-content\/uploads\/2024\/08\/de-tong-tren-10-va-tong-duoi-10.jpg\")
\u0110\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 g\u00ec v\u00e0 g\u1ed3m nh\u1eefng s\u1ed1 n\u00e0o<\/h1>\n<\/header>\n\n
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